1d7ce700605e1af0e455e31ec11f19ff21d26b525darylm/* 2d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * Copyright (c) 1996 by Internet Software Consortium. 3d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * 4d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * Permission to use, copy, modify, and distribute this software for any 5d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * purpose with or without fee is hereby granted, provided that the above 6d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * copyright notice and this permission notice appear in all copies. 7d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * 8d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS 9d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES 10d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE 11d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 12d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 13d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 14d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 15d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * SOFTWARE. 16d7ce700605e1af0e455e31ec11f19ff21d26b525darylm */ 17d7ce700605e1af0e455e31ec11f19ff21d26b525darylm 18d7ce700605e1af0e455e31ec11f19ff21d26b525darylm/* 19d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * Portions copyright (c) 1999, 2000 20d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * Intel Corporation. 21d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * All rights reserved. 22d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * 23d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * Redistribution and use in source and binary forms, with or without 24d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * modification, are permitted provided that the following conditions 25d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * are met: 26d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * 27d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * 1. Redistributions of source code must retain the above copyright 28d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * notice, this list of conditions and the following disclaimer. 29d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * 30d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * 2. Redistributions in binary form must reproduce the above copyright 31d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * notice, this list of conditions and the following disclaimer in the 32d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * documentation and/or other materials provided with the distribution. 33d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * 34d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * 3. All advertising materials mentioning features or use of this software 35d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * must display the following acknowledgement: 36d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * 37d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * This product includes software developed by Intel Corporation and 38d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * its contributors. 39d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * 40d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * 4. Neither the name of Intel Corporation or its contributors may be 41d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * used to endorse or promote products derived from this software 42d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * without specific prior written permission. 43d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * 44d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION AND CONTRIBUTORS ``AS IS'' 45d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 46d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 47d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * ARE DISCLAIMED. IN NO EVENT SHALL INTEL CORPORATION OR CONTRIBUTORS BE 48d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 49d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 50d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 51d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 52d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 53d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 54d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * THE POSSIBILITY OF SUCH DAMAGE. 55d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * 56d7ce700605e1af0e455e31ec11f19ff21d26b525darylm */ 57d7ce700605e1af0e455e31ec11f19ff21d26b525darylm 58d7ce700605e1af0e455e31ec11f19ff21d26b525darylm#if defined(LIBC_SCCS) && !defined(lint) 59d7ce700605e1af0e455e31ec11f19ff21d26b525darylmstatic const char orig_rcsid[] = "From Id: inet_neta.c,v 8.2 1996/08/08 06:54:44 vixie Exp"; 60d7ce700605e1af0e455e31ec11f19ff21d26b525darylmstatic const char rcsid[] = "$Id: inet_neta.c,v 1.1.1.1 2003/11/19 01:51:29 kyu3 Exp $"; 61d7ce700605e1af0e455e31ec11f19ff21d26b525darylm#endif 62d7ce700605e1af0e455e31ec11f19ff21d26b525darylm 63d7ce700605e1af0e455e31ec11f19ff21d26b525darylm#include <sys/types.h> 64d7ce700605e1af0e455e31ec11f19ff21d26b525darylm#include <sys/socket.h> 65d7ce700605e1af0e455e31ec11f19ff21d26b525darylm#include <netinet/in.h> 66d7ce700605e1af0e455e31ec11f19ff21d26b525darylm#include <arpa/inet.h> 67d7ce700605e1af0e455e31ec11f19ff21d26b525darylm 68d7ce700605e1af0e455e31ec11f19ff21d26b525darylm#include <errno.h> 69d7ce700605e1af0e455e31ec11f19ff21d26b525darylm#include <stdio.h> 70d7ce700605e1af0e455e31ec11f19ff21d26b525darylm#include <string.h> 71d7ce700605e1af0e455e31ec11f19ff21d26b525darylm 72d7ce700605e1af0e455e31ec11f19ff21d26b525darylm#ifdef SPRINTF_CHAR 73d7ce700605e1af0e455e31ec11f19ff21d26b525darylm# define SPRINTF(x) strlen(sprintf/**/x) 74d7ce700605e1af0e455e31ec11f19ff21d26b525darylm#else 75d7ce700605e1af0e455e31ec11f19ff21d26b525darylm# define SPRINTF(x) ((size_t)sprintf x) 76d7ce700605e1af0e455e31ec11f19ff21d26b525darylm#endif 77d7ce700605e1af0e455e31ec11f19ff21d26b525darylm 78d7ce700605e1af0e455e31ec11f19ff21d26b525darylm/* 79d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * char * 80d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * inet_neta(src, dst, size) 81d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * format a u_long network number into presentation format. 82d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * return: 83d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * pointer to dst, or NULL if an error occurred (check errno). 84d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * note: 85d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * format of ``src'' is as for inet_network(). 86d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * author: 87d7ce700605e1af0e455e31ec11f19ff21d26b525darylm * Paul Vixie (ISC), July 1996 88d7ce700605e1af0e455e31ec11f19ff21d26b525darylm */ 89d7ce700605e1af0e455e31ec11f19ff21d26b525darylmchar * 90d7ce700605e1af0e455e31ec11f19ff21d26b525darylminet_neta( 91d7ce700605e1af0e455e31ec11f19ff21d26b525darylm u_long src, 92d7ce700605e1af0e455e31ec11f19ff21d26b525darylm char *dst, 93d7ce700605e1af0e455e31ec11f19ff21d26b525darylm size_t size 94d7ce700605e1af0e455e31ec11f19ff21d26b525darylm ) 95d7ce700605e1af0e455e31ec11f19ff21d26b525darylm{ 96d7ce700605e1af0e455e31ec11f19ff21d26b525darylm char *odst = dst; 97d7ce700605e1af0e455e31ec11f19ff21d26b525darylm char *tp; 98d7ce700605e1af0e455e31ec11f19ff21d26b525darylm 99d7ce700605e1af0e455e31ec11f19ff21d26b525darylm while (src & 0xffffffff) { 100d7ce700605e1af0e455e31ec11f19ff21d26b525darylm u_char b = (u_char)((src & 0xff000000) >> 24); 101d7ce700605e1af0e455e31ec11f19ff21d26b525darylm 102d7ce700605e1af0e455e31ec11f19ff21d26b525darylm src <<= 8; 103d7ce700605e1af0e455e31ec11f19ff21d26b525darylm if (b) { 104d7ce700605e1af0e455e31ec11f19ff21d26b525darylm if (size < sizeof "255.") 105d7ce700605e1af0e455e31ec11f19ff21d26b525darylm goto emsgsize; 106d7ce700605e1af0e455e31ec11f19ff21d26b525darylm tp = dst; 107d7ce700605e1af0e455e31ec11f19ff21d26b525darylm dst += SPRINTF((dst, "%u", b)); 108d7ce700605e1af0e455e31ec11f19ff21d26b525darylm if (src != 0L) { 109d7ce700605e1af0e455e31ec11f19ff21d26b525darylm *dst++ = '.'; 110d7ce700605e1af0e455e31ec11f19ff21d26b525darylm *dst = '\0'; 111d7ce700605e1af0e455e31ec11f19ff21d26b525darylm } 112d7ce700605e1af0e455e31ec11f19ff21d26b525darylm size -= (size_t)(dst - tp); 113d7ce700605e1af0e455e31ec11f19ff21d26b525darylm } 114d7ce700605e1af0e455e31ec11f19ff21d26b525darylm } 115d7ce700605e1af0e455e31ec11f19ff21d26b525darylm if (dst == odst) { 116d7ce700605e1af0e455e31ec11f19ff21d26b525darylm if (size < sizeof "0.0.0.0") 117d7ce700605e1af0e455e31ec11f19ff21d26b525darylm goto emsgsize; 118d7ce700605e1af0e455e31ec11f19ff21d26b525darylm strcpy(dst, "0.0.0.0"); 119d7ce700605e1af0e455e31ec11f19ff21d26b525darylm } 120d7ce700605e1af0e455e31ec11f19ff21d26b525darylm return (odst); 121d7ce700605e1af0e455e31ec11f19ff21d26b525darylm 122d7ce700605e1af0e455e31ec11f19ff21d26b525darylm emsgsize: 123d7ce700605e1af0e455e31ec11f19ff21d26b525darylm errno = EMSGSIZE; 124d7ce700605e1af0e455e31ec11f19ff21d26b525darylm return (NULL); 125d7ce700605e1af0e455e31ec11f19ff21d26b525darylm} 126